if ur gonna stick with software, get a new computer, if ur gonna go hardware, get the mpc. you're gonna need to choose one or the other, red pill, blue pill. but one thing for sure is that u have everything you need already. reason, live, axiom61(goddam), mpd. like it doesn't get any better than that. i mean it's all personal preference really. but i mean either way is fine tho, software hardware whatever works.
i personally like the mpc better than any software. i been using software for about 6 years and when i switched to the mpc, i never looked back. like theres just some magical thing about the mpc that i can't explain.
but then theres heads who can't/wont use hardware but can still bang out hot sht on software cuz that's just what theyre comfortable with.
so my point is, software or hardware, it really don't matter. it all comes down to what you're comfortable with at the end of the day.
*edit*
if u DO end up buyin a mpc, get the mpc 1000 with the jj os, it's almost the same as the 2500 but cheaper and smaller. and sell the axiom and the mpd.